It's definitely doable...I've done it several times myself. The only problem is getting the limbs lined up perfectly when drilling the riser for hardware. The easiest way is to drill and install the inserts for the bolts, then mount the limbs and string the bow to check alignment. Drill and install the alignment pins afterward. The most important thing is to make sure your limb pads are square to the riser and parallel to each other. Just make sure to check and recheck all measurements before you go drilling.
Good luck!